release/src-rt-6.x.4708/linux/linux-2.6.36/arch/powerpc/boot/cuboot-sam440ep.c

   1 /*
   2  * Old U-boot compatibility for Sam440ep based off bamboo.c code
   3  * original copyrights below
   4  *
   5  * Author: Josh Boyer <jwboyer@linux.vnet.ibm.com>
   6  *
   7  * Copyright 2007 IBM Corporation
   8  *
   9  * Based on cuboot-ebony.c
  10  *
  11  * Modified from cuboot-bamboo.c for sam440ep:
  12  * Copyright 2008 Giuseppe Coviello <gicoviello@gmail.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify it
  15  * under the terms of the GNU General Public License version 2 as published
  16  * by the Free Software Foundation.
  17  */
  18
  19 #include "ops.h"
  20 #include "stdio.h"
  21 #include "44x.h"
  22 #include "4xx.h"
  23 #include "cuboot.h"
  24
  25 #define TARGET_4xx
  26 #define TARGET_44x
  27 #include "ppcboot.h"
  28
  29 static bd_t bd;
  30
  31 static void sam440ep_fixups(void)
  32 {
  33        unsigned long sysclk = 66666666;
  34
  35        ibm440ep_fixup_clocks(sysclk, 11059200, 25000000);
  36        ibm4xx_sdram_fixup_memsize();
  37        ibm4xx_quiesce_eth((u32 *)0xef600e00, (u32 *)0xef600f00);
  38        dt_fixup_mac_addresses(&bd.bi_enetaddr, &bd.bi_enet1addr);
  39 }
  40
  41 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  42                 unsigned long r6, unsigned long r7)
  43 {
  44         CUBOOT_INIT();
  45         platform_ops.fixups = sam440ep_fixups;
  46         platform_ops.exit = ibm44x_dbcr_reset;
  47         fdt_init(_dtb_start);
  48         serial_console_init();
  49 }